Implementation

http://codeforces.com/contest/719/problem/C 3
http://codeforces.com/contest/747/problem/E 4
http://codeforces.com/contest/754/problem/C 5
11482 UVA (4)
11291 UVA (3)
11070 UVA (5)  //evaluation of expression
11074 UVA (2)
http://codeforces.com/contest/678/problem/B 2 //calendar days
http://codeforces.com/contest/643/problem/A 3 //easy - just simulate
http://codeforces.com/contest/770/problem/D 5 //easy - but pain - draw
http://codeforces.com/contest/789/problem/B 3 //simulate (mby twice)
13171 UVA (1)
10800 UVA (3)
http://codeforces.com/contest/828/problem/B 2 //EASY & NICE - just analysis
http://codeforces.com/contest/825/problem/B 2 //EASY & NICE - Piskvorky - pro prvaky
http://codeforces.com/contest/837/problem/B 2 //Just implementation
http://codeforces.com/contest/837/problem/C 2 //Some nasty iffs
http://codeforces.com/contest/845/problem/B 2 //Easy pro prvaky
http://codeforces.com/contest/845/problem/D 3 //Iffs - folow the rules
http://www.spoj.com/problems/UNIHW/ 4 //NICE (but many iffs)